I don't know.
I know that what keeps people like Jordan back is that they want the Committee Chairmanship that they currently have. Right now, Scalise is the Majority Whip but he's not a Committee Chairman or Sub-committee Chairman on anything (except the Coronavirus Select Sub-committee).
I'd think Scalise would be the person with the least entanglements. Elevating him to the Speakership would be the least disruptive on Committee assignments and committee agendas.
-PJ
Fair points.